【12-7】직업건강 버전 매일 한 문제
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【12-7】직업건강 버전 매일 한 문제 판단문: 화학적 산소 자가구조기는 작동 시간이 짧은 개인용 호흡 보호 장치입니다.맞아요
화학 산소 자구기는 작동 시간이 짧은 개인용 호흡 보호 장치입니다.( √ )
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